Snap-fastener socket and top.



A. H. GREENEBAUM. SNAP PASTENEB, SOCKET AND TOP.

APPLICATION FILED MAR. 23, 1911. 1,041,61 9.

Patented 0011.15, 1912.

'provement in Snap-Fastener Sockets and firm to practically insure theretention of In the accompanying drarxings trating the invewimi. inthrof which like pain iini... atcd. Figure 1 is a el uili I1 arfachingsocket detached. ia w ton; plan view thereof. a ii'drwr t'i'iiPril ofthe UNITED STATES PATENT OFFICE.

ABRAHAM GREENEBAUM, OF BALTIMORE, MARYLAND, ASSIGNOR TO ALllIA MANU-FACTURING COMPANY OF BALTIMORE CITY. OF BALTIMORE, :MABYLAND, A CORrPORATION OF MARYLAND.

SNAP-FASTENER SOCKET AND TOP.

Annlication filed March 23,

To all whom it may concern:

Be it known that I, ABRAHAM H. BAUM, a citizen of the United State-sresiding at Baltimore, in the State of Maryland, have invented a certainnew anduseful Im- Tops, of which the following is a full, clear, andexact description.

One main object of this invention is to provide a snap fastener socketfor use especially on textile fabrics, and more particularly knittedgoods, such as mutllers, and other elastic fabrics, where owing to thetendency of the goods to stretch, it is difficult to apply the socket sosecurely as to prevent it from pulling out of the goods.

In those sockets or snap fasteners where a hole has to be made in thegoods for the attachment of the fastener, the perforation of the goodsserves to increase the tendency of the fastener and goods to part orseparateunder strain. If the goods were carried bodily intact into thefastener cap by the application thereto of the attaching device, acertain clum'siness would result, and more or less difficultyencountered in setting the fastener. To avoid these several objections,and at the same time to provide a fastener Whose hold 011 the goods willbe sufliciently the fastener in place under ordinary strains of use, Iprovide a cap having an interior riveting plate, made with a centrallyarranged concavo-convex projection which is centrally perforated fromthe convex side so as to avoid a sharp cutting or shearing edge at thatplace, and thereby permit the goods to be stretched and carried up moreor less intact into the cap by the cap-attaching socket of peculiarformat-ion, so that the goods are gripped between the cap and the tip ofthe nipple of the socket. and also between the edge of the hale in theriveting plate and the base of the nipple.v and also between the hack oftae cap and the flange of the socket. all as .l will proceed now moreparticularly to set forth and finally claim.

Specification of Letters Patent.

Patented Oct. 15, 1912.

1911. Serial No. 616,434.

socket. Fig. 5 is a cross-section of the cap or top and the socketassembled or set upon a piece of goods. Fig. 6 is a top plan view of thefastener attached and with its cap or top cover-piece removed. Fig. T-isa bottom plan view of the attached fastener. Fig. 8 is a bottom planview, ona larger scale, of the riveting plate detached, and Fig. 9 is across-section thereof. Thesocket proper, which is also theattachingmedium, is designated 1, and is shown in detail in Figs. 1, 4 and Thissocket comprises a base flange Q, a barrel 3 rising from the base andconstituting the stud-engaging and receiving member. a

- shoulder at and a relatively wide nipple 5 rising from this shoulder.It is of prime importance 1n this invention that neither the nipple northe shoulder should have edges which would cutor break the goods andhence these parts are rounded off and smooth. The result is that thenipple simply displaces the threads of the goods where they are partedat all and stretches and carries the goods along with it as it entersthe cap or top.

The cap or top comprises a cover 6, a collet 7, having arounded andsmooth back, an anvil 8 and a non-shearing riveting plate ll, theseparts being held together by closing the cover over the collet in anyordinary way. The riveting plate is of peculiar and novel formation, andconsists of a circular piece whose extreme outer edge 10 issubstantially fiat, with a central concave-convex projection 11 providedwith a central hole 1.2. In order to avoid a shearing edge or bur on theconvex side of this plate where the nipple enters, I punch the holethrough from this convex sidein the direction of the concave side, andthus leave a relatively smooth surface. Furthermore, the hole 12 isenough larger in diameter than the nipple to avoid a crushing, cutting,or shearing action of the nipple and the holcs edge on the goods carriedby the nipple into and throughthis hole in the act of setting thefastener upon an article. Thus, while the goods are stretched, they arenot. designcdly or desirably crushed, cut, or sheared, but are carriedup substantially if not quite intact.

In the act of setting the fastener. the cap placed upon one side of thegoods 13 rivetin and the socket piecezipiaced oppositev to it .on theother ,side, in suitab letools, and res sure exerted to force the twotogether, so that the nipple enters the hole 12 'inthe plate and theedge of the hole rests upon t e shoulder 4, and then; by'furtherpressure the riteting plate recedes within the top. and flattens out, asseenin Figs. 5 and 6, and the tip of the nipple 'ineeting the anvil 8',said nipple is more or less broken down so as to .grasp the rivetingplatebetween itself and the shoulderA, withthe goods gripped between thetip ofthe nipple and the anvil, and between the riyeting plate, and theshoulder, and between the fiange2 and the eollet or back of the cap, asshown in Fig. 5. As indicated in Fig. 6, which is drawn from a. specimenin actual use, the goods over the nipple a're substantially uncuta- A Asshown in F ig. 5, the mouth 14 -of the socket is narrower than thechamber-above it, and the socket is rigid, and thus this form of theinvention. isdesigne'd for use with a spring-stud; but obviouslytheinvention is not limited tothis-oneform of construction,

The flattening out of the riveting plate9 is clearly shown in Fig. 5 andit is also shown how the body 3 of the at (aching device extends withinthe collet and up into the cap, As also shown'in Fig, 5, theconstruction-affords a very flat, comipact socket, especially suitablefor, use on mu ers and similar wearing apparel. p H As shown especiallyin -Fi s. 5 and 7, by

'the construction described, tiebackof the goods is entirely clear ofany broken threads; I "What I claim is:.

=51:- Aisnap fastener socket and top, said socket having a rounded andsmoothnipple,

- perforated from its the shoulder and plate,

ed collet and a in this figure,

:1 barrel having a rounded and smooth shoulder, ,and'a base flan e, arounded collet, and a riveting plate wit in the top, the said top closedabout the plate and collet, said plate having a central concavo-convexprojection convex side and thereby presenting a smooth non-shearingedge, so that when set the goods are rlpped between the socket and topat three places, namely, between the nipple and top, between and betweenthe base flan e and collet without cutting out the goo s.

2. In a snap fastener socket and top, the socket member having a nippleprovided with rounded, smooth and non-shearing edges, a' barrel having arounded, smooth non-shearing shoulder, and a base 60 and flange, and thetop member having aroundriveting plate arranged Within it, said plateprovided with a substantially flat outer edge, a central concavoconvexprojection, and a smooth edged nonshearing central hole of considerablygreater diameter than the nipple, so that when the socket and topmembersare set the plate tends to flatten out, engages the socket memberbetween its shoulder and nipple and said nippleis broken down, therebygrilpping the goods interposed. between t socket and top at threeplaces, namely, between the nipple and top, between the shoulder,,nipple and plate, and between the base fla e and collet, without cuttingout the goo s.

In testimony whereof I have hereunto set hand this 22nd day of March A.I). 1911 I ABRAHAM H. GREENEBAUM. -Witne'sses:

H. Knimooon,

Nernan KRAHT.

